Analytical model for vacuum consolidation incorporating soil disturbance caused by mandrel-driven drains

Perera, D; Indraratna, B; Leroueil, S; Rujikiatkamjorn, C; Kelly, R

Analytical model for vacuum consolidation incorporating soil disturbance caused by mandrel-driven drains

Perera, D Indraratna, B

Leroueil, S Rujikiatkamjorn, C

Kelly, R

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Publisher:: Canadian Science Publishing
Publication Type:: Journal Article
Citation:: Canadian Geotechnical Journal, 2017, 54, (4), pp. 547-560
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Perera, D
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Leroueil, S
dc.contributor.author	Rujikiatkamjorn, C https://orcid.org/0000-0001-8625-2839
dc.contributor.author	Kelly, R
dc.date.accessioned	2022-07-29T05:41:09Z
dc.date.available	2022-07-29T05:41:09Z
dc.date.issued	2017-01-01
dc.identifier.citation	Canadian Geotechnical Journal, 2017, 54, (4), pp. 547-560
dc.identifier.issn	0008-3674
dc.identifier.issn	1208-6010
dc.identifier.uri	http://hdl.handle.net/10453/159357
dc.description.abstract	When vacuum preloading is applied with vertical drains, the rate of consolidation can be increased, and the stability of an embankment is enhanced due to the inward lateral movement. The aim of this study is to develop an analytical solution for vacuum preloading that accurately captures the more realistic variations in compressibility and permeability in actual ground conditions as a result of drain installation. The soil samples were obtained from various locations after drain installation to determine the characteristics of soil surrounding the vertical drain in terms of compressibility and permeability. The main differences between the proposed and conventional models are described by considering the stress history and preloading pressure. The effect of pre-consolidation pressure and the magnitude of applied preloading are examined through the dissipation of average excess pore pressure and associated settlement. The analysis of a selected case history employing the writers’ solution indicates improved accuracy of the predictions in comparison to the field measurements.
dc.language	English
dc.publisher	Canadian Science Publishing
dc.relation.ispartof	Canadian Geotechnical Journal
dc.relation.isbasedon	10.1139/cgj-2016-0232
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Analytical model for vacuum consolidation incorporating soil disturbance caused by mandrel-driven drains
dc.type	Journal Article
utslib.citation.volume	54
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-07-29T05:41:07Z
pubs.issue	4
pubs.publication-status	Published
pubs.volume	54
utslib.citation.issue	4

Abstract:

When vacuum preloading is applied with vertical drains, the rate of consolidation can be increased, and the stability of an embankment is enhanced due to the inward lateral movement. The aim of this study is to develop an analytical solution for vacuum preloading that accurately captures the more realistic variations in compressibility and permeability in actual ground conditions as a result of drain installation. The soil samples were obtained from various locations after drain installation to determine the characteristics of soil surrounding the vertical drain in terms of compressibility and permeability. The main differences between the proposed and conventional models are described by considering the stress history and preloading pressure. The effect of pre-consolidation pressure and the magnitude of applied preloading are examined through the dissipation of average excess pore pressure and associated settlement. The analysis of a selected case history employing the writers’ solution indicates improved accuracy of the predictions in comparison to the field measurements.

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http://hdl.handle.net/10453/159357